3D Models for Step-Up and Step-Down Power Modules
This collection gathers 3D-printable parts around DC-DC power modules: boost boards that raise voltage, buck boards that lower it, combined regulators, and the housings built for them. It is useful when you already have a converter board and want a case, a mounting plate or a front panel for it. Many entries are small STL parts, so a single 3D printer session is often enough to produce them. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.
How this collection is put together
Polyzon assembles this collection from search results on the connected platforms. Repeats and models without a preview are removed, weak matches go to the end, and the rest keeps the search order. Models belong to their authors — check the terms on each model's page.
Selection rules: the Polyzon editorial team · Text updated 2026-10-11
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All models in this collection
LM2596 Buck Converter 4.0~40 to 1.3-37V Adjustable Step-Down Power Module with LED Display Volt meter
Step-Up/Step-Down Module Housing
Cover for MT3608 Step Up Power Module Type C
Type-C 15W 3A 18650 Lithium Battery Charger Module DC-DC Step Up Booster Fast Charge UPS Power Supply / Converter 5V
Front plate using XH-M229 and step up/down module for ATX lab power suply
DC-DC 5V-12V To 3.3V Step Down Voltage Regulator Power Module Board
Case for ICStation Step-up module
1800W DC DC Voltage Step Up module enclosure
079-Homemade Power Bank Charger DIY Step Up Boost Converter Supply Voltage Module USB Charging
LM2577S LM2596S DC-DC Step Up Down Boost buck Voltage Converter Module
LTC3780 Step Up and Step Down Regulator Module
Step Down Box Power Module - XL4015
DC-DC CC CV Buck Converter Step-down Power Supply Module 7-40V to 1-35V 12A
Mini dc/dc module Step-Up
JL-1P Boost Step Up Module UPS
STEP UP MODULE xl6019 5A + CASE
Power supply from USB with DC-DC step-up
USB Step UP/Down Power Supply Module
SX1308 boost/step-up module for kiCad
AC 220V to DC 12V 30A 360W Power Adapter AC-DC Converter Step Down Module Voltage Transformer Switch Power CJ LINDEQUE +(27)079-426-5563
HW-140 buck converter step up/down module
Bench Power Supply/Charger
TP4056 3.7V 4.2V 9V 5V 2A Adjustable Step Up Module 18650 Lithium Li-ion Battery Charging
Power Supply with 18650 cell + TP4056 + MT3608 Step-Up converter
XL4015 Adjustable Step-Down Power Supply Module
HW-636 Step Down Buck Power Module
Step Down Box Power Module (Display) - LM2596
DC-DC Buck Boost Step down / Step up (Step-down Step-up converter module)
DC-DC Boost Converter 4.5V-32V to 5-42V 6A Step-Up Adjustable Power
Starlink mini Netzteil 12-48V mit Step-up Booster für original 15m Kabel / Power Supply for 12V and 15m cable
LM2596S DC-DC Step Down Power Buck Converter Module Holder
LM2596S DC-DC Step Down Power Module
Boost Charger Module & DC DC Step up Converter
Case for MP1584EN Step Down / Up Module
Power Bank 4x18650 QC4.0 QC3.0 Type-C USB 5V 4A Boost Converter Step-Up Power
DC 36V/48V Step Down to 12V 30A 360W Converter Regulator Power Supply Module Buck Transformer
Case for mini DC-DC buck converter step-down power module
Step up module
BOX for XL4015 5A DC-DC Step Down Adjustable Power Supply Module
USB-C Step-Up Module Housing, box, case
Balance Systems Power Sensor Unit | Industrial Control Module CAD (STEP)
Case for ICStation Step-up module
ENCLOSURE FOR DROK Voltage Regulator DC 8-60V to 10-120V 15A DC Boost Converter, Step Up Module
HiLetgo 24V/12V to 5V/5A Power Module DC-DC Step-Down Power Supply Converter Case
HW-636 Step Down Buck Power Module
«3D Models for Step-Up and Step-Down Power Modules»
The models fall into a few groups. Boost converters take a low input and raise it, while buck converters do the opposite, and combined boards switch between both directions. Alongside the electronics sit printed enclosures, lids, front plates and mounting brackets, plus USB-fed and battery-charging modules that people use in power banks and small supplies. The printed parts differ mainly in how the board is held: some are full boxes with cutouts, others are simple trays or faceplates.
When choosing a model, compare its stated internal dimensions with the board you own, including terminal blocks, potentiometers, displays and connector height, since those often decide whether a case closes properly. Look at the mounting hole spacing, the position of the USB or barrel jack openings, and whether the author notes supports, screws or heat-set inserts. Check the material and settings listed on the model page, and read the photos of real prints to see wall thickness and how the lid fits.
If the results are too narrow, try synonyms: boost converter, step-up regulator, DC-DC converter, voltage regulator board, power supply module, or simply case, housing and enclosure. Related searches such as bench power supply, battery charger, power bank and lab supply often lead to the same kind of printed parts. Combining a board type with a part type, for example a regulator with a faceplate, usually narrows the list faster than one long phrase.
Frequently asked questions
What is the difference between a step-up and a step-down module?
Do these models include the electronic components?
What should I measure before printing an enclosure?
Which material works for a power module case?
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![[HW-132 Case] - USB Step Up Power Supply Module / Voltage Regulator](https://cache.polyzon.org/api/img?url=https%3A%2F%2Fmedia.printables.com%2Fmedia%2Fprints%2F130325%2Fimages%2F1249148_bf9b545b-111e-4fea-89a7-91518df96a1e%2Ffoto2.jpg&w=640)





